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DOB1STKIDCMC (V211)
Date of respondent's first birth, in century months
Group: Fertility

Codes

DOB1STKIDCMC (V211) is a 4-digit numeric variable.

9998 = Missing
9999 = NIU (not in universe)

Description

DOB1STKIDCMC (V211) reports the century month code (CMC) for the date of the woman's first birth.

The Guide to DHS Statistics (2003) explains the use and calculation of CMC values as follows:

Century month codes (CMC) are particularly important to check consistency of dates, to calculate intervals between events, and to impute dates when the information for an event is missing or partially complete.

Century month codes (CMC) are calculated by multiplying by 12 the difference between the year of an event and 1900. That year was chosen as the reference period because all of the DHS relevant events occurred during the twentieth or twenty-first centuries. The month of the event is added to the previous result.

CMC = (Year minus 1900) * 12 + Month

For example, the CMC for June 2002 will be:

CMC = (2002 minus 1900) * 12 + 6 = 1230

In other words, 1,230 months have elapsed since January 1900 to June 2002. Based on CMC it is possible to calculate the month and year using the following formulas:

Year = int( ( CMC minus 1 )/12 ) + 1900
[int(x) is the integer part of x]
Month = CMC minus ( ( Year minus 1900 ) * 12 )

Comparability

Apart from universe differences, DOB1STKIDCMC (V211) is largely comparable across samples. While all samples in this variable utilize the Gregorian calendar, other samples utilize country-specific calendars and are excluded from DOB1STKIDCMC but are included in the country-specific variables.

The Ethiopian samples use a country-specific calendar. As a result, all Ethiopian samples are excluded from DOB1STKIDCMC, but are included in the variable DOB1STKIDCMC_ET, which is country-specific to Ethiopia.

Comparability - Standard DHS

DOB1STKIDCMC (V211) is a standard recode variable included in every phase of the DHS data.

Universe

  • Angola 2015: Women age 15-49 who have ever given birth.
  • Bangladesh 1994: Ever-married women age 10-49 who have ever given birth.
  • Bangladesh 1997: Ever-married women age 10-49 who have ever given birth.
  • Bangladesh 2000: Ever-married women age 10-49 who have ever given birth.
  • Bangladesh 2004: Ever-married women age 10-49 who have ever given birth.
  • Bangladesh 2007: Ever-married women age 15-49 who have ever given birth.
  • Bangladesh 2011: Ever-married women age 12-49 who have ever given birth.
  • Bangladesh 2014: Ever-married women age 15-49 who have ever given birth.
  • Benin 1996: Women age 15-49 who have ever given birth.
  • Benin 2001: Women age 15-49 who have ever given birth.
  • Benin 2006: Women age 15-49 who have ever given birth.
  • Benin 2011: Women age 15-49 who have ever given birth.
  • Burkina Faso 1993: Women age 15-49 who have ever given birth.
  • Burkina Faso 1998: Women age 15-49 who have ever given birth.
  • Burkina Faso 2003: Women age 15-49 who have ever given birth.
  • Burkina Faso 2010: Women age 15-49 who have ever given birth.
  • Burundi 1987: Women age 15-49 who have ever given birth.
  • Burundi 2010: Women age 15-49 who have ever given birth.
  • Burundi 2016: Women age 15-49 who have ever given birth.
  • Cameroon 1991: Women age 15-49 who have ever given birth.
  • Cameroon 1998: Women age 15-49 who have ever given birth.
  • Cameroon 2004: Women age 15-49 who have ever given birth.
  • Cameroon 2011: Women age 15-49 who have ever given birth.
  • Congo (Democratic Republic) 2007: Women age 15-49 who have ever given birth.
  • Congo (Democratic Republic) 2013: Women age 15-49 who have ever given birth.
  • Cote d'Ivoire 1994: Women age 15-49 who have ever given birth.
  • Cote d'Ivoire 1998: Women age 15-49 who have ever given birth.
  • Cote d'Ivoire 2011: Women age 15-49 who have ever given birth.
  • Egypt 1988: Ever-married women age 15-49 who have ever given birth.
  • Egypt 1992: Ever-married women age 15-49 who have ever given birth.
  • Egypt 1995: Ever-married women age 15-49 who have ever given birth.
  • Egypt 2000: Ever-married women age 15-49 who have ever given birth.
  • Egypt 2005: Ever-married women age 15-49 who have ever given birth.
  • Egypt 2008: Ever-married women age 15-49 who have ever given birth.
  • Egypt 2014: Ever-married women age 15-49 who have ever given birth.
  • Ghana 1988: Women age 15-49 who have ever given birth.
  • Ghana 1993: Women age 15-49 who have ever given birth.
  • Ghana 1998: Women age 15-49 who have ever given birth.
  • Ghana 2003: Women age 15-49 who have ever given birth.
  • Ghana 2008: Women age 15-49 who have ever given birth.
  • Ghana 2014: Women age 15-49 who have ever given birth.
  • Guinea 1999: Women age 15-49 who have ever given birth.
  • Guinea 2005: Women age 15-49 who have ever given birth.
  • Guinea 2012: Women age 15-49 who have ever given birth.
  • India 1992: Ever-married women age 13-49 who have ever given birth.
  • India 1998: Ever-married women age 15-49 who have ever given birth.
  • India 2005: Women age 15-49 who have ever given birth.
  • India 2015: Women age 15-49 who have ever given birth.
  • Jordan 1990: Ever-married women age 15-49 who have ever given birth.
  • Jordan 1997: Ever-married women age 15-49 who have ever given birth.
  • Jordan 2002: Ever-married women age 15-49 who have ever given birth.
  • Jordan 2007: Ever-married women age 15-49 who have ever given birth.
  • Jordan 2009: Ever-married women age 15-49 who have ever given birth.
  • Jordan 2012: Ever-married women age 15-49 who have ever given birth.
  • Jordan 2017: Ever-married women age 15-49 who have ever given birth.
  • Kenya 1989: Women age 15-49 who have ever given birth.
  • Kenya 1993: Women age 15-49 who have ever given birth.
  • Kenya 1998: Women age 15-49 who have ever given birth.
  • Kenya 2003: Women age 15-49 who have ever given birth.
  • Kenya 2008: Women age 15-49 who have ever given birth.
  • Kenya 2014: Women age 15-49 who have ever given birth.
  • Lesotho 2004: Women age 15-49 who have ever given birth.
  • Lesotho 2009: Women age 15-49 who have ever given birth.
  • Lesotho 2014: Women age 15-49 who have ever given birth.
  • Madagascar 1992: Women age 15-49 who have ever given birth.
  • Madagascar 1997: Women age 15-49 who have ever given birth.
  • Madagascar 2003: Women age 15-49 who have ever given birth.
  • Madagascar 2008: Women age 15-49 who have ever given birth.
  • Malawi 1992: Women age 15-49 who have ever given birth.
  • Malawi 2000: Women age 15-49 who have ever given birth.
  • Malawi 2004: Women age 15-49 who have ever given birth.
  • Malawi 2010: Women age 15-49 who have ever given birth.
  • Malawi 2016: Women age 15-49 who have ever given birth.
  • Mali 1987: Women age 15-49 who have ever given birth.
  • Mali 1995: Women age 15-49 who have ever given birth.
  • Mali 2001: Women age 15-49 who have ever given birth.
  • Mali 2006: Women age 15-49 who have ever given birth.
  • Mali 2012: Women age 15-49 who have ever given birth.
  • Morocco 1987: Ever-married women age 15-49 who have ever given birth.
  • Morocco 1992: Women age 15-49 who have ever given birth.
  • Morocco 2003: Women age 15-49 who have ever given birth.
  • Mozambique 1997: Women age 15-49 who have ever given birth.
  • Mozambique 2003: Women age 15-49 who have ever given birth.
  • Mozambique 2011: Women age 15-49 who have ever given birth.
  • Myanmar 2015: Women age 15-49 who have ever given birth.
  • Namibia 1992: Women age 15-49 who have ever given birth.
  • Namibia 2000: Women age 15-49 who have ever given birth.
  • Namibia 2006: Women age 15-49 who have ever given birth.
  • Namibia 2013: Women age 15-49 who have ever given birth.
  • Niger 1992: Women age 15-49 who have ever given birth.
  • Niger 1998: Women age 15-49 who have ever given birth.
  • Niger 2006: Women age 15-49 who have ever given birth.
  • Niger 2012: Women age 15-49 who have ever given birth.
  • Nigeria 1990: Women age 15-49 who have ever given birth.
  • Nigeria 1999: Women age 10-49 who have ever given birth.
  • Nigeria 2003: Women age 15-49 who have ever given birth.
  • Nigeria 2008: Women age 15-49 who have ever given birth.
  • Nigeria 2013: Women age 15-49 who have ever given birth.
  • Pakistan 1991: Ever-married women age 15-49 who have ever given birth.
  • Pakistan 2006: Ever-married women age 15-49 who have ever given birth.
  • Pakistan 2012: Ever-married women age 15-49 who have ever given birth.
  • Pakistan 2017: Ever-married women age 15-49 who have ever given birth.
  • Rwanda 1992: Women age 15-49 who have ever given birth.
  • Rwanda 2000: Women age 15-49 who have ever given birth.
  • Rwanda 2005: Women age 15-49 who have ever given birth.
  • Rwanda 2010: Women age 15-49 who have ever given birth.
  • Rwanda 2014: Women age 15-49 who have ever given birth.
  • Senegal 1986: Women age 15-49 who have ever given birth.
  • Senegal 1992: Women age 15-49 who have ever given birth.
  • Senegal 1997: Women age 15-49 who have ever given birth.
  • Senegal 2005: Women age 15-49 who have ever given birth.
  • Senegal 2010: Women age 15-49 who have ever given birth.
  • Senegal 2012: Women age 15-49 who have ever given birth.
  • Senegal 2014: Women age 15-49 who have ever given birth.
  • Senegal 2015: Women age 15-49 who have ever given birth.
  • Senegal 2016: Women age 15-49 who have ever given birth.
  • Senegal 2017: Women age 15-49 who have ever given birth.
  • South Africa 1998: Women age 15-49 who have ever given birth.
  • South Africa 2016: Women age 15-49 who have ever given birth.
  • Sudan 1989: Ever-married women age 15-49 who have ever given birth.
  • Tanzania 1991: Women age 15-49 who have ever given birth.
  • Tanzania 1996: Women age 15-49 who have ever given birth.
  • Tanzania 1999: Women age 15-49 who have ever given birth.
  • Tanzania 2004: Women age 15-49 who have ever given birth.
  • Tanzania 2010: Women age 15-49 who have ever given birth.
  • Tanzania 2015: Women age 15-49 who have ever given birth.
  • Tunisia 1988: Ever-married women age 15-49 who have ever given birth.
  • Uganda 1988: Women age 15-49 who have ever given birth.
  • Uganda 1995: Women age 15-49 who have ever given birth.
  • Uganda 2001: Women age 15-49 who have ever given birth.
  • Uganda 2006: Women age 15-49 who have ever given birth.
  • Uganda 2011: Women age 15-49 who have ever given birth.
  • Uganda 2016: Women age 15-49 who have ever given birth.
  • Yemen 1991: Ever-married women age 15-54 who have ever given birth.
  • Yemen 2013: Ever-married women age 15-49 who have ever given birth.
  • Zambia 1992: Women age 15-49 who have ever given birth.
  • Zambia 1996: Women age 15-49 who have ever given birth.
  • Zambia 2001: Women age 15-49 who have ever given birth.
  • Zambia 2007: Women age 15-49 who have ever given birth.
  • Zambia 2013: Women age 15-49 who have ever given birth.
  • Zimbabwe 1988: Women age 15-49 who have ever given birth.
  • Zimbabwe 1994: Women age 15-49 who have ever given birth.
  • Zimbabwe 1999: Women age 15-49 who have ever given birth.
  • Zimbabwe 2005: Women age 15-49 who have ever given birth.
  • Zimbabwe 2010: Women age 15-49 who have ever given birth.
  • Zimbabwe 2015: Women age 15-49 who have ever given birth.
  • Angola: 2015-W, 2015-C, 2015-B
  • Bangladesh: 1994-C, 1994-B, 1994-W, 1997-C, 1997-B, 1997-W, 2000-C, 2000-B, 2000-W, 2004-C, 2004-B, 2004-W, 2007-C, 2007-B, 2007-W, 2011-C, 2011-B, 2011-W, 2014-W, 2014-C, 2014-B
  • Benin: 1996-W, 1996-C, 1996-B, 2001-W, 2001-C, 2001-B, 2006-W, 2006-C, 2006-B, 2011-W, 2011-C, 2011-B
  • Burkina Faso: 1993-W, 1993-C, 1993-B, 1998-W, 1998-C, 1998-B, 2003-W, 2003-C, 2003-B, 2010-W, 2010-C, 2010-B
  • Burundi: 1987-C, 1987-B, 1987-W, 2010-C, 2010-B, 2010-W, 2016-W, 2016-C, 2016-B
  • Cameroon: 1991-W, 1991-C, 1991-B, 1998-W, 1998-C, 1998-B, 2004-W, 2004-C, 2004-B, 2011-W, 2011-C, 2011-B
  • Congo (Democratic Republic): 2007-C, 2007-B, 2007-W, 2013-W, 2013-C, 2013-B
  • Cote d'Ivoire: 1994-W, 1994-C, 1994-B, 1998-W, 1998-C, 1998-B, 2011-W, 2011-C, 2011-B
  • Egypt: 1988-W, 1988-C, 1988-B, 1992-W, 1992-C, 1992-B, 1995-W, 1995-C, 1995-B, 2000-W, 2000-C, 2000-B, 2005-W, 2005-C, 2005-B, 2008-W, 2008-C, 2008-B, 2014-W, 2014-C, 2014-B
  • Ghana: 1988-W, 1988-C, 1988-B, 1993-W, 1993-C, 1993-B, 1998-W, 1998-C, 1998-B, 2003-W, 2003-C, 2003-B, 2008-W, 2008-C, 2008-B, 2014-W, 2014-C, 2014-B
  • Guinea: 1999-W, 1999-C, 1999-B, 2005-W, 2005-C, 2005-B, 2012-W, 2012-C, 2012-B
  • India: 1992-W, 1992-C, 1992-B, 1998-W, 1998-C, 1998-B, 2005-W, 2005-C, 2005-B, 2015-W, 2015-C, 2015-B
  • Jordan: 1990-W, 1990-C, 1990-B, 1997-W, 1997-C, 1997-B, 2002-W, 2002-C, 2002-B, 2007-W, 2007-C, 2007-B, 2009-W, 2009-C, 2009-B, 2012-W, 2012-C, 2012-B, 2017-W, 2017-C, 2017-B
  • Kenya: 1989-W, 1989-C, 1989-B, 1993-W, 1993-C, 1993-B, 1998-W, 1998-C, 1998-B, 2003-W, 2003-C, 2003-B, 2008-W, 2008-C, 2008-B, 2014-W, 2014-C, 2014-B
  • Lesotho: 2004-W, 2004-C, 2004-B, 2009-W, 2009-C, 2009-B, 2014-W, 2014-C, 2014-B
  • Madagascar: 1992-W, 1992-C, 1992-B, 1997-W, 1997-C, 1997-B, 2003-W, 2003-C, 2003-B, 2008-W, 2008-C, 2008-B
  • Malawi: 1992-W, 1992-C, 1992-B, 2000-W, 2000-C, 2000-B, 2004-W, 2004-C, 2004-B, 2010-W, 2010-C, 2010-B, 2016-W, 2016-C, 2016-B
  • Mali: 1987-W, 1987-C, 1987-B, 1995-W, 1995-C, 1995-B, 2001-W, 2001-C, 2001-B, 2006-W, 2006-C, 2006-B, 2012-W, 2012-C, 2012-B
  • Morocco: 1987-W, 1987-C, 1987-B, 1992-W, 1992-C, 1992-B, 2003-W, 2003-C, 2003-B
  • Mozambique: 1997-W, 1997-C, 1997-B, 2003-W, 2003-C, 2003-B, 2011-W, 2011-C, 2011-B
  • Myanmar: 2015-C, 2015-W, 2015-B
  • Namibia: 1992-W, 1992-C, 1992-B, 2000-W, 2000-C, 2000-B, 2006-W, 2006-C, 2006-B, 2013-W, 2013-C, 2013-B
  • Niger: 1992-W, 1992-C, 1992-B, 1998-W, 1998-C, 1998-B, 2006-W, 2006-C, 2006-B, 2012-W, 2012-C, 2012-B
  • Nigeria: 1990-W, 1990-C, 1990-B, 1999-W, 1999-C, 1999-B, 2003-W, 2003-C, 2003-B, 2008-W, 2008-C, 2008-B, 2013-W, 2013-C, 2013-B
  • Pakistan: 1991-W, 1991-C, 1991-B, 2006-W, 2006-C, 2006-B, 2012-W, 2012-C, 2012-B, 2017-W, 2017-C, 2017-B
  • Rwanda: 1992-W, 1992-C, 1992-B, 2000-W, 2000-C, 2000-B, 2005-B, 2005-W, 2005-C, 2010-B, 2010-W, 2010-C, 2014-W, 2014-C, 2014-B
  • Senegal: 1986-B, 1986-W, 1986-C, 1992-B, 1992-W, 1992-C, 1997-B, 1997-W, 1997-C, 2005-B, 2005-W, 2005-C, 2010-B, 2010-W, 2010-C, 2012-B, 2012-W, 2012-C, 2014-B, 2014-W, 2014-C, 2015-W, 2015-C, 2015-B, 2016-W, 2016-C, 2016-B, 2017-W, 2017-C, 2017-B
  • South Africa: 1998-B, 1998-W, 1998-C, 2016-W, 2016-C, 2016-B
  • Sudan: 1989-B, 1989-W, 1989-C
  • Tanzania: 1991-B, 1991-W, 1991-C, 1996-B, 1996-W, 1996-C, 1999-B, 1999-W, 1999-C, 2004-B, 2004-W, 2004-C, 2010-B, 2010-W, 2010-C, 2015-W, 2015-C, 2015-B
  • Tunisia: 1988-W, 1988-C, 1988-B
  • Uganda: 1988-B, 1988-W, 1988-C, 1995-B, 1995-W, 1995-C, 2001-B, 2001-W, 2001-C, 2006-B, 2006-W, 2006-C, 2011-B, 2011-W, 2011-C, 2016-W, 2016-C, 2016-B
  • Yemen: 1991-B, 1991-W, 1991-C, 2013-B, 2013-W, 2013-C
  • Zambia: 1992-B, 1992-W, 1992-C, 1996-B, 1996-W, 1996-C, 2001-B, 2001-W, 2001-C, 2007-B, 2007-W, 2007-C, 2013-B, 2013-W, 2013-C
  • Zimbabwe: 1988-B, 1988-W, 1988-C, 1994-B, 1994-W, 1994-C, 1999-B, 1999-W, 1999-C, 2005-B, 2005-W, 2005-C, 2010-B, 2010-W, 2010-C, 2015-W, 2015-C, 2015-B